# 35 Ill. Adm. Code 203.113: Section 203.113 Commence

> Illinois · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_113

## Section

- **Citation:** 35 Ill. Adm. Code 203.113
- **Heading:** Section 203.113 Commence
- **Jurisdiction:** Illinois
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Illinois Administrative Code / Title 35 ENVIRONMENTAL PROTECTION / CHAPTER I: POLLUTION CONTROL BOARD / Part 203 MAJOR STATIONARY SOURCES CONSTRUCTION AND MODIFICATION / Section 203.113 Commence

## Text

Section 203
Section 203.113  Commence
As applied to construction of a
major stationary source or major modification "commence" means that
the owner or operator has obtained all necessary preconstruction approvals or
permits and either has:
a)         Begun, or caused to begin, a continuous program of actual
on-site construction of the source, to be completed within a reasonable time;
or
b)         Entered into binding agreements or contractural obligations,
which cannot be cancelled or modified without substantial loss to the owner or
operator, to undertake a program of actual construction of the source to be
completed within a reasonable time.
c)         For purposes of this Secton, a "reasonable time"
shall be determined considering but not limited to the following factors:  The
nature and size of the project, the extent of design engineering, the amount of
off-site preparation, whether equipment can be fabricated or can be purchased,
when the project begins (considering both the seasonal nature of construction
activity and the existence of other projects competing for construction labor
at the same time, the place of the environmental permit in the sequence of
corporate and overall governmental approval), and the nature of the permittee
(private, public, regulated, etc).

## Nearby sections

- [35 Ill. Adm. Code 203.100 Section 203.100  Effective Dates](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_100.md)
- [35 Ill. Adm. Code 203.101 Section 203.101  Definitions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_101.md)
- [35 Ill. Adm. Code 203.103 Section 203.103  Actual Construction](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_103.md)
- [35 Ill. Adm. Code 203.104 Section 203.104  Actual Emissions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_104.md)
- [35 Ill. Adm. Code 203.107 Section 203.107  Allowable Emissions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_107.md)
- [35 Ill. Adm. Code 203.110 Section 203.110  Available Growth Margin](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_110.md)
- [35 Ill. Adm. Code 203.112 Section 203.112  Building, Structure and Facility](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_112.md)
- [35 Ill. Adm. Code 203.113 Section 203.113  Commence](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_113.md)
- [35 Ill. Adm. Code 203.116 Section 203.116  Construction](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_116.md)
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- [35 Ill. Adm. Code 203.119 Section 203.119  Emission Baseline](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_119.md)
- [35 Ill. Adm. Code 203.121 Section 203.121  Emission Offset](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_121.md)
- [35 Ill. Adm. Code 203.122 Section 203.122  Emissions Unit](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_122.md)
- [35 Ill. Adm. Code 203.123 Section 203.123  Federally Enforceable](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_123.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_113. Check the current official text before relying on it. Not legal advice.